Infant CPR Resuscitator Mask from Work ‘n Leisure Safety Products. Smaller size CPR mask made for the unique size of a tiny infant. Naturally, it’s the same quality product as for adults and children. Mask does NOT have an O2 supplemental oxygen inlet nor is it sold here with a valve. Standard one-way valves fit both infant and adult resuscitator masks. We sell them on this website under item number 42PAN5000RV1 (singles) and 42PAN5000RV2 (quantity).